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Internet Service Providers in Greece
List of the top 20 organizations with the largest IP allocations in Greece
Rank
Name
IPv4 addresses
IPv6 /64 networks
AS numbers
Prefixes
Ote SA (Hellenic Telecommunications Organisation)
3,881,984
1.27 x 2
35
1
112
VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA
2,635,520
1.9 x 2
35
2
505
WIND HELLAS TELECOMMUNICATIONS SA
962,306
1.38 x 2
35
2
356
4
Cosmote Mobile Telecommunications S.A.
255,744
1.02 x 2
35
1
18
5
National Infrastructures for Research and Technology S.A.
250,880
1.13 x 2
35
2
44
6
Greek High-School Internet Network
79,616
1.01 x 2
24
1
13
7
Technological Educational Institute of Crete
70,656
2
16
1
7
8
INTRACOM S.A. TELECOM SOLUTIONS
66,816
0
1
6
9
Foundation of Research and Technology Hellas
66,304
2
17
2
6
10
University of Crete
65,792
2
16
1
3
11
Aristotle University of Thessaloniki
65,792
2
16
1
3
12
Technical University of Crete
65,536
2
16
1
2
13
National Technical University of Athens
65,536
2
16
1
2
14
National Center of Scientific Research DEMOKRITOS
65,536
2
16
1
2
15
Center for Research and Technology Hellas (CERTH)
65,536
2
16
1
2
16
University of Athens
51,712
2
16
1
5
17
Computer Technology Institute and Press
32,768
0
1
1
18
LANCOM LTD
28,162
2
32
3
70
19
ELLINIKA DIKTIA KALODION MEPE
22,528
0
1
22
20
MEDIANET INVEST AE
20,224
2
35
1
71